Abstract: A rotary die cutter having an anvil cylinder that is operable alternately with one of a pair of die cylinders includes a vertical support and rectilinear translation arrangement that permits selective repositioning of each of the die cylinders between an operative position and a stand-by position utilizing various combinations of horizontal and vertical linear movement of the cylinders. In the presently preferred embodiment, the supporting frames of all three cylinders, in operation, are in abutting contact and vertically aligned to assure that shock loads are directed vertically downwardly into the supporting base. The operator has direct access to each of the die cylinders for maintenance and order change from a single station positioned below the board line.

Abstract: A rotary die cutter having an anvil cylinder that is operable alternately with one of a pair of die cylinders includes a vertical support and rectilinear translation arrangement that permits selective repositioning of each of the die cylinders between an operative position and a stand-by position utilizing various combinations of horizontal and vertical linear movement of the cylinders. In the presently preferred embodiment, the supporting frames of all three cylinders, in operation, are in abutting contact and vertically aligned to assure that shock loads are directed vertically downwardly into the supporting base. The operator has direct access to each of the die cylinders for maintenance and order change from a single station positioned below the board line.

Abstract: A multistage printing machine is disclosed with a vacuum conveyor between stages, and in which supplemental air is provided adjacent at least one printing cylinder.

Abstract: A mounting system is disclosed for removably mounting rollers and cylinders in a machine for quick and easy removal and replacement by other rollers and cylinders. The mounting system provides for rapid separation of the journal from the roller or cylinder so that only the roller or cylinder is removed, and the mounting system has particular applicability with respect to ink rolls in printing machines.

Abstract: A mounting system is disclosed for removably mounting rollers and cylinders in a machine for quick and easy removal and replacement by other rollers and cylinders. The mounting system provides for rapid separation of the journal from the roller or cylinder so that only the roller or cylinder is removed, and the mounting system has particular applicability with respect to ink rolls in printing machines.

Abstract: A multistage printing machine is disclosed with a vacuum conveyor between stages, and in which supplemental air is provided adjacent at least one printing cylinder.

Abstract: A rotary printing machine is disclosed which eliminates an impression roller and creates a fluid force which urges the material to be imprinted against the printing plate.

Abstract: A rotary pin stripper is disclosed for separating scrap pieces of paperboard from finish pieces after the pieces have been cut in a die cutter. In the preferred embodiment, the pin stripper cylinder is supported at mid-length, and the stripper cylinder is readily released for replacement and/or repair, while also providing for torque transmission between two separate, axially extending sections of the eccentric cylinder.